Service Manual

RemovingtheFrontWheelMotors(continued)
3.Cleantheexteriorofthemotor,hydraulictubes,andttingsbeforeremoving
themotortopreventcontaminantsfromenteringintothehydraulicsystem.
4.Toeasilyaccessthehydraulictubettingsatthewheelmotor,removethe
pinthatsecurestheliftcylindertothefrontdeckliftarmandlowerthefrontof
theliftcylinder;refertoRemovingtheFrontDeckLiftCylinder(page4–166).
5.Disconnectthehydraulictubesfromthewheelmotor.Also,loosenthe
ttingsthatareatotherendofthetubes,toshiftthetubeswhileremoving
thewheelmotor.
6.Installplugsorcapsonthedisconnectedhydrauliclinesandttingsto
preventcontamination.
IMPORTANT
Beforelooseningthefasteners,supportthewheelmotortoprevent
themotorfromfallingduringremoval.
7.Removethe2boltsand2atwashersthatattachthefrontwheelmotorto
thebrakeandplanetaryassemblies.
8.Slidethefrontwheelmotorfromthebrakeassemblyandremoveitfrom
themachine.
9.RemoveanddiscardtheO-ringthatisinstalledbetweenthewheelmotorand
thebrakeassembly.
10.Ifnecessary,removethettingsfromthewheelmotoranddiscardthe
O-ringsfromthettings.
InstallingtheFrontWheelMotors
1.Ifthettingswereremovedfromthewheelmotor,lubricateandinstallnew
O-ringsontothettings.Installthettingsintothemotorportsandtighten
them;refertoInstallingtheHydraulicFittings(SAEStraightThreadO-Ring
FittingintotheComponentPort)(page4–12).
2.LightlylubricatethenewO-ring(item9inFigure127)withoilandinstallit
onthewheelmotorange.
g031898
Figure128
1.Wheelmotorbackplate
3.Supplylineport
2.Casedrainport
HydraulicSystem:ServiceandRepairs
Page4–122
Groundsmaster5900TractionUnit
08159SLRevC